13077820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 31711680

約数和(自身を除く): 18633860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 857, 1090, 1526, 1714, 2180, 3052, 3428, 3815, 4285, 5999, 7630, 8570, 11998, 15260, 17140, 23996, 29995, 59990, 93413, 119980, 186826, 373652, 467065, 653891, 934130, 1307782, 1868260, 2615564, 3269455, 6538910, 13077820]

約数ペア:

[(1, 13077820), (2, 6538910), (4, 3269455), (5, 2615564), (7, 1868260), (10, 1307782), (14, 934130), (20, 653891), (28, 467065), (35, 373652), (70, 186826), (109, 119980), (140, 93413), (218, 59990), (436, 29995), (545, 23996), (763, 17140), (857, 15260), (1090, 11998), (1526, 8570), (1714, 7630), (2180, 5999), (3052, 4285), (3428, 3815)]